Spooling yarn prom the cop



S.THOMPSON. v MACHINERY FOR SPOOLING YARN FROM THE GOP. No. 10,557. Patented Feb. 21, 1854.

J I frfllffl SMITH THOMPSON, OF NEWBURYPORT, MASSACHUSETTS,

SPOOLING YARN FROM THE COP.

Specification of Letters Patent No. 10,557, dated February 21, 1854.

To all whom it may concern Be it known that I, SMITH THOMPSON, of Newburyport, in the county ofEsseX and State of Massachusetts, have invented a new and useful Improvement in Machinery for Spooling Yarn from the Cop; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, letters, figures, and references thereof.

Of the said drawings, Figure 1, denotes a front elevation, and Fig. 2, a sectional side view of a cop, its stand, support bar, friction beam, and thread guides as they appear in a spooling machine constructed in my improved manner.

In the said drawings, A is the cop; B, the stand, or support of it; C, the support bar; D, the friction beam, and E, F, the yarn or thread guides.

In the ordinary spooling machine the back guide, F, is made perfectly stationary. When this is the case, vthe draft on the yarn, while it is being unwound from or near the bot-tom of the cop being much increased from what it is while the yarn is being unwound from or near the upper part or rest of the cop, the yarn is liable to be broken. Besides this cause of variation of the draft, it frequently occurs from others. As the beam, D, is covered with cloth in order to produce friction on the yarn, there is a uniformity of friction while the yarnis passing over and in contact with it, for it always touches the beam in the same arc, a b 0, but should the are be diminished, the friction will be reduced in a corresponding degree.

My invention has for its object to lessen the said are or the friction under any injurious increase of the draft, and to do it proportionally to such increase. I accomplish this by making the back, F, movable and to hang on the yarn and freely rise and fall within a socket, d, the ordinary'weight or pressure of the guide being adjusted to such draft as it will be safe for the yarn to endure without danger of breakage therefrom. An increase of draft will cause the back guide to be lifted and thereby diminish the arc of contact of the yarn with the friction beam.

The dotted lines not only show the guide as raised under an increase of draft, but the position the thread assumes under such circumstances, thearc of bearing on thefriction beam being reduced to a b, it being supposed that the said beam is a round one.

I do not confine my invention to the precise form of movable guide used, nor to the making it of weight sufficient to produce the requisite pressure on the thread, as such pressuremay be obtained to it by a spring properly applied to it, or by other well known means, such variations being changes in construction without any materlal change in the principle of the invention.

I claim- The regulator guide as combined with the friction beam and made to hang on the yarn and be capable of being raised by it substantially in manner and for the purpose as specified.

In testimony whereof, I have hereto set my'signature this second day of July A. D. 1853.

I SMITH THOMPSON.

Witnesses:

JAMES HAOKETT, STEPHEN W. M RsToN. 

